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Standards

Editorial Standards

How the site handles sources, calculator assumptions, advertising and corrections.

The site aims to be useful without pretending that an international article can replace local approval or professional design.

Standards

  • Use clear distinctions between non-potable and potable use.
  • State assumptions and formulas for calculators.
  • Avoid universal cost claims and unsupported payback promises.
  • Prefer official public-sector sources for health, code and stormwater boundaries.
  • Separate product categories from endorsements.
  • Correct material errors when credible evidence is supplied.

Independence

Advertising does not control article conclusions. Sponsored content, if ever used, will be labelled. The site does not accept payment for favourable rankings.

Review

Evergreen technical pages are reviewed when major source guidance changes or when a specific error is reported. Publication and modification dates in structured data indicate the current edition of this build.